U.S. patent number 5,835,609 [Application Number 08/676,597] was granted by the patent office on 1998-11-10 for ear protection device.
This patent grant is currently assigned to The Gorgonz Group, Inc.. Invention is credited to Brian E. LeGette, Ronald L. Wilson, II.
United States Patent |
5,835,609 |
LeGette , et al. |
November 10, 1998 |
**Please see images for:
( Certificate of Correction ) ** |
Ear protection device
Abstract
There is provided an ear covering device to be worn over the
ears of the individual and to extend around the back of the
individual's head or neck. The covering device is formed by a frame
having a flexible band and two ear cups on each end. The band is
contemplated to be flexible so that the space between opposite ear
cup members may be enlarged to permit attachment of the covering
device onto the back of the head. The spring force of the flexible
band causing engagement of the covering device over the ears of the
individual with the flexible band wrapping around the back of the
individual's head or neck. Each ear cup includes a frusto conical
frame portion having a central opening therein. Fabric covers the
frusto conical portion of the ear cups as well as the flexible
band. The frusto conical frame along with the fabric cover form a
pocket. Suitable materials are provided in order to create a
comfortable feeling, as well as provide warmth and protection for
the ears. Earphones may be inserted into the pocket to create a
combination ear protection device and headphone. The ear cups may
also be hingedly attached to the band to permit collapsing of the
covering device when not in use.
Inventors: |
LeGette; Brian E. (Severna
Park, MD), Wilson, II; Ronald L. (Vienna, WV) |
Assignee: |
The Gorgonz Group, Inc.
(Naperville, IL)
|
Family
ID: |
46202935 |
Appl.
No.: |
08/676,597 |
Filed: |
July 3, 1996 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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450587 |
Jun 2, 1995 |
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Current U.S.
Class: |
381/385;
2/209 |
Current CPC
Class: |
A61F
11/14 (20130101); H04R 5/0335 (20130101); H04R
1/1066 (20130101); H04R 5/033 (20130101) |
Current International
Class: |
A61F
11/14 (20060101); A61F 11/00 (20060101); H04R
5/033 (20060101); H04R 5/00 (20060101); H04R
025/00 () |
Field of
Search: |
;381/25,183,187,205
;379/430 ;181/129,130,137 ;128/866,864,857 ;2/209,906 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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0 745 364 A3 |
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Mar 1996 |
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EP |
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1353524 |
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1964 |
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FR |
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2 536 253 |
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Nov 1982 |
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FR |
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2 532 838 |
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Sep 1983 |
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FR |
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294003 |
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Jan 1954 |
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SE |
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Other References
Advertisement: The "PODS" ear warming eye glass retainer, Shred
Alert Products of Hood River, Oregon..
|
Primary Examiner: Le; Huyen
Attorney, Agent or Firm: Kenyon & Kenyon
Parent Case Text
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of copending application Ser. No.
08/460,587 which was filed Jun. 2, 1995.
Claims
We claim:
1. A covering device to be worn over the ears of an individual and
extend around the back of the individual's head, comprising:
a flexible band, the band having a central curved portion and two
end portions, the band having an inner side facing towards the
individual and having an outer side facing away from the
individual;
two ear cups, one ear cup attached to each end portion of the band,
at least a portion of the ear cups having a frusto conical
configuration and a central opening therein, each ear cup having an
inner side facing towards the individual and having an outer side
facing away from the individual; and
a plurality of fabric layers covering at least the frusto conical
portion of the ear cups, the central opening and the flexible band,
the fabric layers covering both the inner side and the outer side
of the flexible band and covering both the inner side and the outer
side of the two ear cups, the fabric layers being sewn with a
single seam, the fabric layers and the ear cups forming a pocket in
the fabric layers for insertion of an earphone into the pocket.
2. The ear covering device as claimed in claim 1, wherein the
fabric layers include an elastic layer having alternating bands and
openings.
3. The ear covering device as claimed in claim 1, wherein the ear
cups are hingedly connected to the end portions of the band.
4. The ear covering device as claimed in claim 1, wherein the hinge
connection between the end portions and the band is formed by a
living hinge.
5. A covering device to be worn over the ears of an individual and
extending around the back of the individual's head or neck,
comprising:
a band having a central curved portion and two straight end
portions, the curved portion having a radius of curvature of about
21/4 inches,
two ear cups each having an attachment flange and a base flange,
each ear cup attached to the opposite end portions of the band, the
attachment being formed by the attachment flange including a hinge
for at least partial rotation of the frusto conical cup portion
about the attachment flange, the hinge including a continuous
plastic formation having a reduced cross-section between the flange
and the attachment flange so that flexing is permitted between the
base flange and the attachment flange, a frusto conical cup portion
having a central opening therein, the attachment flange integrally
formed with the frusto conical cup portion at an oblique angle
thereto, the frusto conical cup portion defining a frusto conical
cavity, and
the curvature of the central portion of the band and the oblique
angle of the attachment flange with the frusto conical cup portion
directing the ear cups inwardly towards one another from opposite
sides of the band.
6. The covering device as claimed in claim 5 further comprising:
earphone means integrated within the ear cups, the earphone means
positioned within the central opening of the frusto conical portion
and covered by the fabric means.
7. A covering device as claimed in claim 5 further comprising: a
pair of speakers, each speaker positioned within the central
opening of the frusto conical portion of the ear cup, and a speaker
wire connected to the speakers and at the opposite end to a
standard male jack.
8. A covering device as claimed in claim 7, wherein a portion of
the speaker wire is retained within the fabric means covering the
central curve portion of the band.
9. A covering device as claimed in claim 5, wherein the formation
of the attachment flange with the frusto conical cup portion
include a hinge for at least partial rotation of the frusto conical
portion about the attachment flange.
10. A covering device as claimed in claim 9, wherein the hinge is a
living hinge.
11. A covering device as claimed in claim 10, wherein the hinge
connection between the attachment flange and the frusto conical
portion includes means for limiting the rotation of the frusto
conical portion about the attachment flange.
12. A covering device as claimed in claim 5, wherein the attachment
of the ear cups to the opposite end portions of the band is formed
by an attachment head, the attachment head forming a rotational
pivot for the ear cups with respect to the ends of the band such
that the ear cups may rotate about the axis of the attachment
head.
13. A covering device to be worn over the ears of an individual and
extending around the back of the individual's head or neck,
comprising:
a band having a first curved portion and a second curved portion,
one end of each of the first and second curved portions overlapping
and slidably attached to opposing curved portion, such that the
relative overall length of the band may be adjusted,
two ear cups, one ear cup attached to the free end of the first
curved portion and the second ear cup attached to the free end of
the second curved portion, the ear cups defining a cavity formed
from two support flanges, formed in a V-shape, and a semi-circular
frame portion which extends between opposite projections of the
V-shape of the flanges, the semi-circular portion and the support
flanges defining a central opening, an attachment flange projecting
from the vertex of the support flanges in a direction opposite the
semi-circular portion, the attachment flange including means
thereon for rotatably attaching the ear cups to the free ends of
the first and second curved portions, and
fabric means covering the band and the ear cups on both sides
thereof and forming a pocket within the cavity of the ear cups.
14. A covering device as claimed in claim 13, wherein the ear cups
further comprise two cup extensions projecting from the projected
ends of the V-shaped support flanges in a direction opposite of the
semi-circular frame portion.
15. A covering device as claimed in claim 13, wherein the
attachment means for the ear cups further comprises an attachment
head which projects from the outer surfaces of the attachment
flange, the attachment head forming a pivot for the ear cups with
respect to the free end of the band portions upon which it is
attached, the attachment permitting rotation of the ear cups about
the axis of the attachment head.
16. A covering device as claimed in claim 15, wherein the
attachment head is snap-fit within an opening in the end of the
band portion.
17. A covering device as claimed in claim 13, wherein the first
curved portion of the band includes a series of raised bumps on the
interior surface thereof which engage the overlap formed by the
second band portion to form a resistance to the relative sliding
movement of the two band portions when adjustment of the overall
length of the band is desired.
18. A covering device as claimed in claim 13, wherein the fabric
means is constructed from a plurality of fabric pieces sewn with a
single seam.
19. A covering device as claimed in claim 13, wherein the two ear
cups rotatably engage into a position at the free ends of the first
and second curved portions so that the ear cups are aligned with
the band.
20. A covering device as claimed in claim 13, wherein:
a section adjacent to the end of the first curved portion of the
band is less wide than the end of the first curved portion of the
band, and
a section adjacent to the end of the second curved portion of the
band is less wide than the end of the second curved portion of the
band.
21. A covering device as claimed in claim 13, wherein the band and
the two support flanges direct the ear cups inwardly towards one
another to maintain position of the covering device.
22. A covering device as claimed in claim 21, wherein the covering
device retains the position around the back of the individual's
head or neck without any support around the top of the individual's
head.
23. An ear warmer frame, comprising:
a band having;
a first curved portion having an enlarged portion at a first end
and a passageway at a second end, and
a second curved portion, having an enlarged portion at a first end
and a passageway at a second end,
each passageway having a first slot portion allowing the opposite
curved portion of said band to slide through and having a second
slot portion allowing the enlarged portion of the opposite curved
portion of said band to slide through,
whereby one end of each of the first and second curved portions
overlapping and slidably attached to opposing curved portion, such
that the relative overall length of the band may be adjusted.
24. The ear warmer frame of claim 23, further comprising:
two ear cups each having an attachment head, each attachment head
attaching to one enlarged portion of one curved portion of said
band.
25. The ear warmer frame of claim 23, wherein the passageway of the
first curved portion said band is integrally formed with the first
curved portion of said band, the passageway of the second curved
portion said band is integrally formed with the second curved
portion of said band.
26. The ear warmer frame of claim 23, wherein the first curved
portion of the band includes a series of raised bumps on the
interior surface thereof which engage the overlap formed by the
second band portion to form a resistance to the relative sliding
movement of the two band portions when adjustment of the overall
length of the band is desired.
Description
FIELD OF THE INVENTION
The present invention relates to a covering to be worn over and to
protect the ears of an individual. The covering is intended to
extend around the back of the head or neck of the individual when
being worn. The present invention also relates to an ear protection
device that may incorporate audio earphones or similar type
elements.
BACKGROUND OF THE INVENTION
There are a number of prior devices which cover an individual's
ears for warmth or the like. These devices, generally known as "ear
muffs", are represented in part by U.S. Pat. No. 3,249,949 to
Rosenberg et al. and U.S. Pat. No. 3,509,580 to Rubenstein et al.
These prior ear muffs generally include a band which wraps around
the top of the head and includes an enlarged end which engages and
covers the ears for warmth and protection.
An alternate method for securing ear protection type structures is
shown in Rosenberg U.S. Pat. No. 2,070,216 which is in the form of
a headband. Edwards U.S. Pat. No. 5,201,856 shows a device which
wraps around the side of an individual's head and attaches at the
front end to the arms of eyeglasses. Brinkley U.S. Pat. No.
5,339,467 shows an ear protection type device which attaches to the
rim of the ear and maintains its position without a securing strap
or the like.
Ballard U.S. Pat. No. 548,738 shows an ear and neck protecting
device which wraps around the back of the individual's head and
covers the neck to a position below the collar. Triplett U.S. Pat.
No. 2,671,221 shows an ear protection device that wraps around the
back of an individual's head and includes a hinge at its
center.
It has previously been contemplated that audio speakers may be
incorporated into ear muff or headband type devices. Krawangna U.S.
Pat. No. 3,787,899 shows an ear muff that includes audio speakers
therein. Spates U.S. Pat. No. 4,864,619 shows a stereo head set
within a headband. A wrap for a standard headphone is shown in
Byrne, Jr. U.S. Pat. No. 5,257,420.
Despite the existence of various types of ear muffs and headbands,
there remains a need for an ear protection device having the
advantages of the present invention.
SUMMARY OF THE INVENTION
The present invention relates to a covering device to be worn over
the ears of an individual. Preferably, the covering device extends
between the opposite ears around the back of the individual's head
or neck.
One embodiment of the covering device of the present invention
includes a flexible band which is positioned between two ear cups.
The band includes a central curved portion and two end portions.
The ear cups are attached to the end portions of the band and
project therefrom. At least one portion of the ear cups includes a
frusto conical frame member having a central opening therein. A
fabric is used to cover at least the frusto conical portion and
central opening of the ear cups so as to form a covering for the
ears.
The fabric which covers the ear covering device may cover both the
ear cups and the band. The fabric may include an opening within the
portion covering the ear cups so that a earphone or the like may be
inserted into the pocket formed by the frusto conical frame portion
and the fabric covering. The ear cups may also be hingedly
connected to the ends of the band and the band may be
collapsible.
Another embodiment of the covering device of the present invention
includes a band having two curved portions with one end of each
curved band portion overlapping and slideably attached to the other
curved band portion such that the relative overall length of the
band may be adjusted. Two ear cup portions are attached to the free
ends of the curved portions. The ear cups may include V-shaped
support flanges. A semi-circular frame extends between the
projections of the V-shaped portion. A curved ear cup extension
portion extends from each of the projections of the V-shape in a
direction opposite of the semi-circular portion. These portions of
the ear cup form an ear cavity. The semi-circular portion and the
support flanges also define a central opening in the ear cavity. An
attachment flange projects from the vertex of the V-shaped support
flanges. The attachment flange including means thereon for
rotatably attaching the ear cups to the free ends of the curved
band portions. Fabric means covers the band and the ear cups on
both sides and forms a pocket adjacent the central opening in the
ear cups.
The invention further contemplates the use of specific dimensional
relationships between the ear cups and the band, as well as
specific materials for the construction of the covering device, so
as to form a comfortable and functional ear covering device which
may be worn by almost any individual for protection of the
ears.
BRIEF DESCRIPTION OF THE DRAWINGS
For the purpose of illustrating the invention, there is shown in
the drawings a form which is presently preferred; it being
understood, however, that this invention is not limited to the
precise arrangements and instrumentalities shown.
FIG. 1 shows one form of the covering device contemplated by the
present invention as being worn by an individual.
FIG. 2 shows a top elevational view of an ear covering device
contemplated by the present invention.
FIG. 3 shows a side plan view of the frame of the covering device
of the present invention.
FIG. 4 shows a front plan view of the frame of the covering device
of the present invention.
FIG. 5 shows a bottom elevational view of the frame of the covering
device of the present invention.
FIG. 6 shows the covering device incorporating a headphone type
speaker arrangement therein.
FIGS. 7A and 7B show the component parts of the covering device and
headphone speakers as contemplated by FIG. 6.
FIGS. 8A through 8F show a series of covering panels which form the
fabric covering for the present invention.
FIGS. 9 through 15 show various embodiments of a hinged connection
for use with the ear covering device of the present invention.
FIGS. 16 through 24 show side elevational views of various
embodiments of a "living hinge" for use within the covering device
of present invention.
FIG. 25 shows a collapsible frame for an ear covering device.
FIG. 26 shows the collapsible frame of FIG. 25 illustrated in an
opened position.
FIG. 27 shows an ear covering device in accordance with the present
invention, illustrated in the collapsed position.
FIG. 28 is a top plane view of a portion of an alternate embodiment
of an ear covering device as contemplated by the present
invention.
FIG. 29 is a side elevation of the alternate embodiment of the ear
covering device as shown in FIG. 28.
FIG. 30 shows a side elevation of the alternate frame embodiment as
contemplated by FIGS. 28 and 29.
FIGS. 31-38 show various features of the alternate frame
embodiments as shown in FIG. 30.
DETAILED DESCRIPTION OF THE INVENTION
In the Figures, where like numerals indicate like elements, there
is shown multiple forms of an ear covering device as contemplated
by the present invention. The ear covering device as illustrated in
FIG. 1 is generally designated by the numeral 10. The ear covering
device 10 is adapted to be worn over the ears of an individual 12.
When worn, the device 10 extends around the back of the head and/or
neck of the wearer.
The ear covering device 10 generally includes a band portion 14 and
two ear protecting portions 16. One side of the ear covering device
10 is illustrated in FIG. 1. The opposite side of device 10 is
contemplated to be a mirror image of that illustrated in FIG. 1. As
illustrated in FIG. 1, the band portion 14 is relatively narrower
than the ear covering portions 16. It is contemplated that
variations on this dimensional relationship may be made without
departing from the essence of the present invention.
FIG. 2 shows a top plan view of the ear covering device 10
illustrated in FIG. 1. In position "A" in FIG. 2, the ear covering
device 10 is illustrated in its normal rest position with the ear
covering portions 16 positioned closely adjacent to one another.
The rest positioning of the covering portions is created by the
curvature of band portion 14 and the form of the frame for the ear
covering portions 16 (shown in detail in other figures). Position
"B", as illustrated in FIG. 2, shows the ear covering portions 16
deflected outwardly due primarily to a flexing of band 14. The
enlargement of the distance between opposite ear covering portions
16 permits the ear covering device 10 to be placed on the head of
the individual 12, as illustrated in FIG. 1. The spring force
created by the flexible band 14 of the ear covering device 10
causes the ear covering portions 16 to engage against the side of
the head of the individual 12. The spring force of the band is
contemplated to be sufficient to engage the head 12 so that the ear
covering device 10 does not fall off. However, the spring force is
desired to be limited so that the ear covering device is not
uncomfortable to wear.
FIGS. 3-5 generally illustrate the framework of covering device 10.
The frame generally comprises a flexible band 18 and two ear cup
frame members 20. The ear cup frame members 20 include an
attachment portion or flange 22 and a frusto conical frame portion
24. The attachment portion 22 in the embodiment illustrated in
FIGS. 3-5 is integrally formed with the frusto conical portion 24.
The attachment portion 22 is formed at an oblique angle with
respect to the plane of the frusto conical portion 24. This angle
creates, in part, the inward positioning of the ear covering
portions 16 as illustrated in FIG. 2, i.e., position "A". The angle
between the attachment flange 22 and the frusto conical portion 24
is contemplated to be in the range of about 90.degree. to
160.degree. and is preferably approximately 145.degree.. The
flexible band 18 includes end portions 26 which are engaged within
the attachment portions 22 of the ear cup frame members 20. As
illustrated in FIG. 3, the end portion 26 is engaged within a slot
28 within attachment portion 22 and is secured therein by ribs 30.
A detent (not shown) may be provided on the end portion 26 of the
flexible band 18 so as to resist the removal of the ear cup frame
member 20 from between the opposing ribs 30 on the end portion
26.
The flexible band 18 as illustrated includes a curved portion 32
and two end portions 26. Preferably, the curved portion 32 has a
radius of curvature of approximately 21/4 inches. The end portions
are formed by bends at the end of the curved portion 32 and are
separated by a distance X, as illustrated in FIG. 4. Preferably,
distance X is in the range of about 3.5 to 4.5 inches and
specifically about 3.9 inches. The end portions 26 are straight and
are formed integral with the curved portion 32. Preferably, the
band 18 is made of a stainless steel type material; however, other
materials are contemplated, including polypropylene, nylon,
polyethylene, etc. The band 18 should be sufficiently flexible such
that the relative distance X between the two end portions 26 may be
enlarged and the ear cup frame members 20 may be separated prior to
placing ear covering device 10 on the individual 12 (FIG. 1).
The ear cup frame members 20 are preferably made of a plastic
material, such as nylon. The frusto conical portions 24 at each end
of the frame include a central opening 34. The diameter of the
frusto conical portion at its base is contemplated to be in the
range of about 2.7 to 4 inches and preferably in the neighborhood
of 3 inches. The preferred height of the frusto conical portion is
in the range of about 0.2 to 0.5 inches. The preferred height
dimension if approximately 0.25 inches with the side wall being at
an angle of about 45.degree.. The frusto conical portion 24 is
contemplated to fit around the ear when wearing of the ear covering
device 10.
In FIG. 6, the ear covering device 10 is shown having a pair of
speakers or earphones 36 and a speaker wire 38 incorporated
therein. The earphones 36 and speaker wire 38 are also illustrated
in FIG. 7B, separate from the ear covering device 10. The speaker
wire 38 terminates in a standard male jack 39 for connection to a
personal radio, tape player or the like (not shown).
In FIGS. 6 and 7A, the ear covering device 10 includes band 18 and
ear cup frame members 20 as shown in FIGS. 3-5. The band 18 and ear
cups 20 are covered by a fabric material 40. As illustrated, the
band portion 14 and the ear covering portions 16 are each covered
with fabric 40. The fabric covering 40 includes a series of bands
42 which engage the speaker wire 38 and retain it within the ear
covering device 10. In addition, a pocket is formed within the ear
cups 20 which retains the earphones 36. The earphones 36 may be
inserted into the pocket by means of slot 44 within the fabric 40.
As illustrated, the slot 40 is positioned adjacent to each ear
covering portion 16.
As generally illustrated in FIGS. 8A-8F, the fabric 40 includes
multiple layers. In FIG. 8A, there is shown a top plan view of the
ear covering device 10 in the open position. The fabric 40
completely covers the outside surfaces of the band 18 and the ear
cup frame members 20. As shown in FIG. 8B, the fabric 40 also
covers the inside surfaces of the band 18 and ear cups 20.
Multiple layers of fabric are utilized to form the fabric covering
40 for the ear covering device 10. These layers are generally
illustrated in FIGS. 8C-8F. In FIG. 8C, there is shown an outer
shell 46 which includes a central tapered portion 48. In FIG. 8D
there is shown an inner fabric covering 52 which when assembled is
exposed between bands 42, as shown in FIG. 6. The inner fabric 52
generally covers the inner surfaces of band 18. The inner fabric 52
is overlapped by a central portion 56 which is shown in FIG. 8E.
The central portion 56 includes a series of alternating bands 42
and openings 60 in its center and two circular portions 58 at each
end. A central opening 62 is provided within the circular portions
58. The central portion 56 is contemplated to be provided on the
inside of the ear covering device 10 and at least partially
covering the inner fabric 52. Covering the circular portions 58 of
the band fabric 56 are inner ear members 64. The inner ear members
64 as shown in FIG. 8F have a generally circular configuration. The
inner ear members 64 are positioned over top of the circular
portions 58 and the corresponding central opening 62 in central
fabric 56. Adjacent one end of the inner ear members 64 is a curved
border 66 which in the final constructions forms the slot 44 for
insertion of the earphones 36 as contemplated by FIGS. 6 and 7.
The various layers of the fabric material 40 are combined by sewing
or the like. The fabric covering may include an outer piping 68.
Piping 68 may be formed as part of one of the layers of the fabric
material 40 or may be a separate element attached thereto.
Any number of materials are contemplated for the fabric 40. Piping
68 as illustrated in FIGS. 8A and 8B may be a wear-resistant cotton
blend or an entirely synthetic material. The exposed outer shell 46
may be a nylon-covered close cell neoprene or other
moisture-resistant fabric. The band fabric 54 may also be made of
neoprene. Inner central tapered fabric 52 and inner ear members 64
are preferably made of a synthetic fleece type lining material, so
as to provide warmth and comfort. The inner ear members 64 will be
in direct contact with the individual 12. It is noted that the
exposed outer shell 46 may alternatively be made of a fleece
material. It has been determined that the fleece material provides
sufficient protection from the elements while also permitting sound
to pass therethrough.
In FIGS. 9-23, there is illustrated a number of hinge embodiments
which may be used to form the connection between the attachment
portion 22 and the frusto conical portion 24 of the ear cup frame
members 20. Each of these embodiments will be discussed separately
below. A number of these embodiments include a living hinge type
arrangement. A living hinge as contemplated by the present
invention generally includes a continuous plastic formation having
a reduced cross-section between a base flange and an attachment
flange, wherein flexing is permitted between the two flanges. The
form of each of the hinges will be discussed in further detail
below.
In FIG. 9, there is illustrated an embodiment of the attachment
portion 22' for the ear cup frame member 20'. The frusto conical
portion 24 as illustrated in this FIG. 9 is generally contemplated
to be the same as that illustrated previously. However, the
communication between the frusto conical portion 24 and the
attachment portion is not contemplated to be rigid. The living
hinge 70 is provided between an attachment flange 72 and a base
flange 74. The living hinge 70 permits the ear cup 20 to pivot such
that the ear covering portion 16 may collapse into the band portion
14 to reduce the size of the ear covering device 10 when not in
use. A rivet hole 76 is provided in the attachment flange 72. The
engagement between engagement portion 22' and the flexible band 18
(not shown in FIG. 9) may be made by means of a rivet (not shown).
It is contemplated that rotation of the ear cup frame member 20'
about the rivet or opening 76 further permits collapsing the ear
covering portions 16 into band 14.
In FIG. 10 there is illustrated a further embodiment of the ear cup
frame member 20" which includes a frusto conical portion 24 and a
modified living hinge 70'. The attachment portion 22' generally
includes an inverted T-shaped attachment flange 72' and an L-shaped
base flange 74'. The connection between the T-shaped flange 72' and
the L-shaped flange 74' forms the living hinge 70' and limits the
amount of outward rotation of the frusto conical portion 24 with
respect to the attachment portion 22". The hinge 70' permits the
inward rotation of the frusto conical portion 24 towards the
attachment portion 22" when collapsing the ear covering device 10.
Again, a rivet hole 76 is provided in the attachment flange 72' for
securing the attachment portion 22" to the end portion of the
flexible band 18 (above).
In FIG. 11, there is shown a further embodiment of an ear cup frame
member 20"'. In this embodiment, the attachment flange 72" is
generally planar with the base flange 74" and includes the hinge
70" positioned therebetween. A slot or groove is provided as part
of the living hinge 70" such that a limited amount of inward
rotation of the frusto conical portion 24 is permitted with respect
to the attachment flange 72". Again, the attachment flange 72" may
be secured to band 18 (above) by means of rivet hole 76 and a rivet
(not shown).
In FIG. 12 there is illustrated a still further embodiment of an
ear cup frame member 20"" including a hinge 70'" formed as part of
the attachment portion 22'"'. The base flange 74'" in this
embodiment generally includes an L-shaped member with one leg of
the L-shape being generally planar with the attachment flange 72'".
The living hinge 70'" is provided between the L-shaped flange 74'"
and the attachment flange 72'" with the projection of L-shaped
flange 74'" serving to prevent full rotation of the frusto conical
portion 24 with respect to the attachment flange 72'".
In FIGS. 13-15, there are illustrated further hinge embodiments for
the ear cup frame members. These hinged arrangements are generally
contemplated to include a press fit relationship and/or a pin
secured within adjacent elements.
In FIG. 13, the frusto conical portion 24 includes a projecting tab
78. Tab 78 includes a rounded end and forms the axis for the hinge
82. Tab 78 is formed integral with the frusto conical portion 24.
The securing portion 80 of hinge 82 includes a planar base 81 and a
curved projection 84. The curved projection 84 generally
encapsulates the end of the projecting tab 78 such as a hinge is
formed. The planar base 81 of the securing portion 80 generally
limits outward rotation of the frusto conical portion 24. The curve
portion 84 may also limit inward rotation about the hinge 82.
In FIG. 14, the frusto conical portion generally includes a
projecting tab 78' which includes a central slot. A tab 86 on the
securing portion 88 is engaged within the slot in tab 78. A pin 90
forms an axis for the hinge and extends through the ends of tabs 78
and 86.
In FIG. 15 there is shown a further embodiment of a hinge
construction for the ear cup frame. The frusto conical portion 24
includes two projections 92 which are formed on the inside surface
of the cone 24. The base members 92 engage on opposite sides of a
projecting tab 86' which is formed as part of the securing portion
88. A pin (not shown) forms the axis for the hinge and extends
through the projections 92 and the tab 86' on securing portion
88.
In FIG. 16 there is illustrated a living hinge in the form similar
to that shown in FIG. 11. The hinge 94 generally includes a
V-shaped notch 95 within a planar body portion 96. Projecting from
the left hand element of the planar body portion 96 is an
attachment head 98 which may be inserted into an opening in the end
portion 26 of band 18 (not shown). It is contemplated that the
press fit relationship between the opening in end portion 26 and
the attachment head 98 will form a pivot similar to the rivet
attachment contemplated for the embodiments in FIGS. 9-15. In
phantom, there is illustrated the flexing of the living hinge
94.
In FIG. 17, a further embodiment of the living hinge is shown. The
hinge 100 is formed between a first base member 102 and a second
base member 104. The second base member 104 includes an attachment
head 98, similar to that contemplated by FIG. 16. However, in this
embodiment, the first base member is not planar with the second
base member 104. The flexing of the hinge 100 is shown in
phantom.
In FIG. 18, there is illustrated a living hinge having a form
similar to that shown in FIG. 10 above. A first base member 106
forms an inverted T-shaped element and is provided along with an
L-shaped base member 108. The hinge 110 is formed between the first
and second base numbers 106. 108. Because of the projecting portion
on the right hand side of the first base member 106 (as illustrated
in FIG. 18) the downward rotation of the second base member 108 is
limited. The movement of the second base member 108 is shown in
phantom.
In FIG. 19, there is a shown a still further embodiment of a living
hinge type attachment for the ear cup member. The hinge 112 is
formed between a first base member 114 and a second base member
116. The first and second base members 114, 116 each include a bend
at their respective ends which permit the formation of the hinge
112. The bent ends engage one another so as to limit rotation of
second base member 116 in the downward direction (as shown). The
rotation of member 116 in the upward direction is shown in
phantom.
In FIG. 20, there is a further embodiment of a living hinge type
structure. In this embodiment, the hinge 118 is formed between two
L-shaped members 120 and 122. The L-shaped members are positioned
opposite one another, such that their elongated projections are not
planar. This arrangement again limits downward rotation of the
right hand L-shaped member 122. The upward rotation of member 122
is shown in phantom in this FIG. 20.
In FIG. 21, there is illustrated a hinge arrangement similar to
that contemplated by FIG. 13 above. The hinge 124 is formed by a
tab 126 having a circular end 128 which is engaged within a curved
projection 130 formed on a planar member 132. The tab 126 engages
the upward surface of planar 132 so as to limit rotation thereof
downwardly about the hinge 124. In addition, the upward rotation of
tab 126 about the hinge 124 is limited as illustrated in phantom.
The upper surface of tab 126 engages the end the of curved portion
130. The hinge 124 is contemplated to be formed by a press fit
relationship between the rounded end 128 of tab 126 and the inside
surfaces of curved projection 130.
In FIG. 22, there is illustrated a further embodiment of a hinge
which is generally similar to that shown in FIG. 14. The hinge 134
is formed between a first member 136 and a second member 138. It is
contemplated that the first and second member include engaging
projections which are formed around a central pin 140. The upward
rotation of second member 138 about the hinge 134 is shown in
phantom.
In FIG. 23, there is illustrated a further embodiment of a hinge
connection. The hinge 142 is formed between a first planar member
144 and an L-shaped second member 146. The L-shaped second member
146 permits the upper surface of the second member 146 to engage
the lower surface of the first planar member 144 when the hinge 142
is collapsed. The opening of hinge 142 is shown in phantom.
In FIG. 24, there is illustrated a further hinge embodiment. The
hinge 148 is formed between a first planar member 150 and a
T-shaped second member 152. The hinge is formed on the central
portion of the T-shape in a manner similar to that contemplated by
the hinge 134 in FIG. 22 and the hinge 142 in FIG. 23. Again, the
upper portion of the T-shaped member 152, when in inverted
position, engages the lower surface of the planar member 150 to
limit rotation about the hinge 148. The rotation of hinge 150 is
illustrated in phantom.
In FIGS. 25, 26 and 27, there is illustrated a collapsible ear
protection device 10' which is shown in the open position (FIG. 26)
and in the closed position (FIGS. 25 and 27). For illustrative
purposes, only the frame portion of the ear protection device 10'
has been shown in FIGS. 25 and 26. However, a fabric covering
similar to the embodiment shown in the figures discussed above is
contemplated to be included and is shown in FIG. 27.
The band 18' of device 10' generally includes a semi-circular first
portion 154 and a semi-circular second portion 156 which engage one
another to form a continuous arc. Engagement is formed by wrapping
a portion of each member 156 and 154 around the other. The wrapping
portion of the first semi-circular portion 154 is identified by the
numeral 158. The wrapping portion of the second semi-circular
member 156 is identified by the numeral 160. As an alternative to
wrapping the two portions around one another, separate rings or
bands may be wrapped around one end of the first member 154 (for
example) and attached thereto. The rings will also be wrapped
around the central portion of the second member 156. In final
assembly, as illustrated in FIG. 26, the end of the band 18'
identified by the numeral 160, includes a single layer whereas the
central portion 162 of the band 18' includes an overlapped double
layer. The double layer portion may be shortened or elongated by
sliding the two members 154 and 156 with respect to one another so
as to move the wrapping portions 158 and 159 closer together. To
shorten the overall length of the band 18' the two wrap portions
158 and 159 are moved further apart from one another (elongating
the overlap 162 of the two portions, but shortening the overall
length of the band 18').
In FIGS. 25 and 26, the frusto conical portion 24' forms the
entirety of the ear cup 164. The connection between the ends 160 of
the band 18' is preferably formed by an attachment head 166,
similar to that specifically illustrated in FIG. 16 (element 98;
also illustrated in FIGS. 19-22), and a socket or opening in the
ends 160 of the band 18'. As illustrated, the attachment head is
inserted in the opening in a press fit type relationship.
Alternatively, the ends 160 could include an inverted V-shaped
notch with a rounded opening at the top. The shaft of the
attachment head in this contemplated embodiment would be slid into
the notch and retained within the rounded opening, again in a press
fit type relationship. Another possibility is a "figure 8" type
opening with one side thereof being larger than the other. In this
form, the enlarged diameter of the head portion can be inserted
into the larger opening and then the shaft portion slid into the
smaller portion of the opening (again in a press fit relationship).
Other forms of detachable fastening and non-detachable fastening
(such as a rivet) are contemplated. The intent of this type
attachment is to permit the frusto conical portion 24' to rotate
about the attachment head 166 and the end of the band 18'.
As is more particularly illustrated in FIG. 27, one frusto conical
portion 24' formed within the ear covering portion 16' may be
rotated so as to flatten against the opposite ear covering portion
16' (which is also rotated) with the central portion 14 (which
covers band 18') forming a circular (or at least semi-circular)
side wall between the parallel ear covering portions. In this
manner, the collapsed ear covering device 10' can retain the
speaker wire 38 and male jack 39 (each shown in phantom). The
speakers 36 (also shown in phantom) are retained within the ear
covering device within the pocket formed by the central opening 62
within the central fabric portion (FIG. 8E) and the respective
outer shell 46 (FIG. 8C) and inner ear members 64 (FIG. 8F).
In FIGS. 28-38, there is shown an alternate embodiment of a frame
for an ear protection device. The frame of this embodiment is
generally labeled with the numeral 210. In FIGS. 28 and 29, there
is particularly illustrated an ear cup frame member 212. The ear
cup frame 212 includes a modified ear cavity having a semi-circular
frame 214 at one end, two support flanges 216, 218 formed as a
central V-shaped portion, an attachment portion or flange 220, and
two cup extension portions 222 and 224. The modified ear cavity is
generally shown in FIG. 28. The semi-circular portion 214 defines,
along with the support flanges 216, 218, a central opening 226. The
attachment flange 220 extends outwardly from the vertex of the
V-shape of the support flanges 216, 218.
As illustrated more particularly in FIGS. 29 and 30, the outline of
the cavity of ear cup 212 is generally formed by the cup extensions
222, 224, along with the semi-circular frame portion 212. The
support flanges 216, 218 project above the ear cup to further
define the cavity for receiving an ear. Thus, the frame member 212
forms a open area defined by the height of the semi-circular
portion 214 and the cup extensions 222 and 224, as well as the
projection of the support flanges 216, 218 there above.
As shown in FIG. 30, the frame 210 includes a band 230 which is
comprised of a first curved portion 232 and a second curved portion
234. The two band portions 232, 234 overlap and engage one another
by means of passageways 236, 238. Passageway 236 is positioned at
one end of band portion 234, which is opposite band end 228.
Passageway 238, formed as part of the band portion 232, is
positioned at the opposite end of band 234 from attachment end 226.
Band portion 232 on its inside surface includes a series of raised
bumps or ratchet teeth 240 which form a resistance to the sliding
movement of passageway 236 of band portion 234 when the expansion
of the overall length of the band 230 is desired. The passageways
236 and 238 include a lower portion in which the opposing band
slides. As can be seen, the thickness of the band ends 226, 228
increases in the area of the openings 246, 248. An upper portion is
included in the passageways which permits the passage of the
passageway 236 over the end 226 of band portion 232 and, similarly,
the passage of passageway 238 over the band end 228 of band portion
234. Each band end 226 and 228 includes a projecting tab 242 and
244, respectively, which extends beyond the openings 246 and 248,
respectively, which receive the attachment head 250 of the two ear
cup frame members 212.
The connection between the attachment head 250 and the openings 246
and 248 in the band portions 232 and 234, respectively, permits the
rotation of the ear cup around the axis of the attachment head 250.
When the band ends 226, 228 are aligned with the attachment flange
220, the tabs 242, 244 form a moment arm which translates the
spring force, created by the curvature of the band 230, to the ear
cup frame members. This permits the ear cup frame member to flex
and engage around the ear of the wearer. The semicircular portion
214 flexes with respect to the more rigid structure of the support
flanges 216, 218 due to the "twist" line created by the relief area
252 on opposite sides of the ear cup frame 212. In addition, the
attachment flange 220 is provided with raised bumps 254 on the
outside surface thereof. The raised bumps define a slot
therebetween in which is engaged a bump 256 on the inside surface
of band end 242 of band portion 232 or a bump 258 on end 228 of
band portion 234. The engagement of bumps 256, 258 within the slot
formed by the raised portions 254 on attachment flange 220 secures
the ear cup frame member 212 in alignment with band 230. This
engagement can be overcome by a slight rotation of the ear cup 212
with respect to the band 230.
In FIG. 31 there is shown a cross section of the engagement of band
portion 232 by passageway 236 on the end of band portion 234. As
discussed above, the passageway 236 includes a first slot portion
260 in which in engaged the main part of band portion 232. A second
slot portion 262 is also provided within the passageway 236, for
passage of the enlarged or thickened portion of the end 242 of the
band 232.
The end 242 of band 232 is shown in more detail in FIGS. 33-35.
Projecting tab 242 extends outwardly from the end 226 of the band
portion 232. The extension of tab 242 created an additional moment
about the engagement of the attachment head 250 (FIGS. 29-30)
within the opening 246. As shown in FIG. 33, the tab 242 has a
lesser width than the main portion of the band 232. As shown in
FIGS. 34 and 35, the tab 242 is formed integral with the band end
226 and projects from its lower or inside surface. Thus, the
thickness of the band 232 adjacent the opening 246 is greater than
the remaining band portions. However, the thickening of the end 226
of the band portion 232 created by the tab portion 242 is
restricted in width. This width restriction is provided so that the
end 226 of the band portion 232 can be inserted during assembly
through the passageway 236 of the opposite band portion 234. Tab
portion 242 passes through the second slot portion 262 while the
main portion of band 232 passes through first slot portion (FIG.
31) so as to form the overlap by the band portion 234. The
difference in width permits the overlap to remain secure, without
excessive movement of the band portion 232 within the passageway
236. In addition, the edges of the first slot portion 260 within
passageway 236 serve to engage the ribs 240 on the inside surface
of band portion 232.
In FIG. 32 there is shown in cross section the passageway 238 on
band portion 232 in engagement with band portion 234. Passageway
238 is formed similar to passageway 234 on the one end of band
portion 234. The main portion of band 234 is positioned within a
first slot portion 266. A second slot portion 268 is formed
adjacent the first slot portion 266, to provide passage for the
thickened portion of the end 244 (discussed in further detail
below).
In FIGS. 36-38, there is shown the structure of the end 244 of the
band portion 234 which is attached to the ear cup frame member 212.
On the end 244 of the band portion 234, a raised area is provided
adjacent the opening 248 for receipt of the attachment head 250
(FIGS. 28-30). As can be seen more particularly in FIGS. 37 and 38,
the raised area surrounds the opening 248 and has a width which is
less than the width of the main portion of band portion 234. This
step in the thickness of the band portion permits the passage of
the end 244 of the band portion 234 through passageway 238 (FIG.
32) during assembly. In particular, the raised area of the band end
244 passes through the second slot portion 266 within the
passageway 238.
The openings 246 and 248 within the respective band ends 242 and
244 are formed by a central circular hole having three radially
projecting slots 268 extending outwardly therefrom. As shown in the
cross sections of FIGS. 34-35 and 37-38, each opening 246, 248
includes an upper chamber 270 and a lower chamber 272. The upper
chamber 270 has a diameter that is greater than the lower chamber
272. The radially extending slots 268 project outwardly from the
lower chamber 272. In addition, a rib 274 is formed around the
circumference of the opening which forms the lower chamber 272. The
rib 274 projects into the upper chamber 272 within openings 246 and
248. The rib 274 is discontinuous, in that the slots 268 extend
through the rib 274 in addition to the side walls of the lower
chamber 274.
As seen in FIG. 30, the attachment head 250 includes a shaft which
is connected at one end to the attachment flange 220 portion of the
ear cup frame member 212. The shaft is enlarged at the projected
end of the attachment head 250. The attachment heads 250 of
separate ear cup frames 212 are inserted into the openings 246, 246
in the ends 242, 244 of the two band portions 232, 234,
respectively. The opening of the lower chamber 272 has a diameter
which is slightly larger than the diameter of the shaft of the
attachment head 250, so as to permit the ear cup frame member 212
to rotate about the axis of the shaft. The enlarged end of the
attachment head 250 has a diameter greater than the opening formed
by the lower chamber 272. The enlarged end is pressed through the
lower chamber opening 272 and fits within the upper chamber 270.
The radial slots 268 permit the side walls of the lower chamber 272
to flex during the insertion of the attachment head 250 into the
openings 246, 248. The press fit relationship between the
attachment head 250 and the openings 246, 248 secures the ear cup
frame members 212 to the ends of the band 230. The slots 268
provide flexibility to the side walls of the lower chamber 272
within the openings 246, 248 and facilitate the creation of the
press fit attachment. The ribs 274 engage the lower portion of the
enlarged end of attachment head 250. The rib 274 limits the axial
movement of the attachment head 250 within the openings 246, 248.
Also, the 180.degree. portion of the rib 274 that extends between
two of the slots 268 is positioned on the side of the openings 246,
248 opposite of the projected ends 242, 244, respectively. This
arrangement stabilizes the engagement of the attachment head 250
within the openings 246, 248 and limits play between the band 230
and the ear cup frame members 212.
The overall structure of the embodiment shown in FIGS. 28-38, is
contemplated to be generally larger than those shown in the earlier
embodiments. In addition, the cavity of the ear cup frame member
212 is contemplated to have a more semi-circular interior due to
the inclusion of the support flanges 216 and 218 and due to their
relationship with the attachment flange 220.
The frame embodiment 210 shown in FIGS. 28-38, is contemplated to
include a fabric covering similar to those discussed above. In
addition, speakers, such as those shown in FIGS. 6, 7b and 27, may
be included within the interior of the ear covering device 210.
The frame of this or any embodiment may be made of a Crastin.RTM.
material which is manufactured by the DuPont Company. The
Crastin.RTM. material is considered less suspectable to changes in
moisture than a typical nylon material and is not severely effected
by changes in temperature. It is contemplated that the
characteristics of this material and its higher flex modulus will
enable the frame to be relatively thinner than would be possible by
a the use of nylon material, while still accomplishing the desired
characteristics of the present invention.
The present invention may be embodied in other specific forms
without departing from the spirit or essential attributes thereof
and, accordingly, reference should be made to the appended claims,
rather than to the foregoing specification, as indicating the scope
of the invention.
* * * * *